Improvement in hand-looms



IlNiTnD STATES PATENT Fries.

OLEMENS UNVERZAG'I, OF RICHMOND, INDIANA.

IMPROVEMENT IN HAND-LOOMS.

Specification forming part of Letters Patent No. 52,626, dated February IIB, 1866.

To all whom t may concern:

Be it known that I, GLEMENs UNvEnzAGT, of Richmond, Indiana, have invented certain new and useful Improvements in Hand-Looms; and I declare the following to be a full, clear, and exact description of the saine, reference being had to the drawings and letters of reference marked thereon, which accompany and form apart of this specification.

In the drawings, Figure l is a perspective view ofthe loom. Fig. 2 is a plan of the compound wheel and its attachments. Fig. 3 is a view of the shuttle-box and shuttle in position. Fig. 4 is a view of the cam-block and collar. Fig. 5 is a view of the picker-block, showing the arrangement of the pickei-staf`s and picker-spring, Snc.

Like letters and numbers refer to like parts of the loom.

To enable those skilled in the art to make and use my improvement, I will now proceed to describe the saine.

I Iii Fig. 1, a a, a represent the frame-work of the loom, which is of the ordinary form. The main shaft il extends across the frame, and resting upon suitable boxingis provided with two balance-wheels-one at each end outside of the framework, marked d d-each one of which is arranged with a wrist-pin, to which is attached the pitmen l Z.

rIhe shaft t is surmounted with a cam-block, c, near its center, said cam-block e being made eccentric by being bored between its center I and circumference.

The outer surface of the cam-block c is provided with a spiral groove traversed on its cross-section by a return-groove.

The collar f, which surrounds and works upon the cam-block e, is provided with a steel feather, f', working in the spiral groove of the cani-block e, and upon its under side there are attached jaws 4, provided with graduating holes.

1 The pinion l is rigidly attached to the shaft t', and'is driven by the compound bevel and spur wheel 2, whose axis is secured to the frame-work by any proper device.

The compound wheel 2 is provided with an adjustable wrist-pin, to which is attached the arm 6, which is jointed upon the arm 7.

Ihe arm 7 extends along the outside of the batten-post p' to the cloth-roller r, and is provided with a pawl, 9, which pawl is tted With a spring, and operates the ratchet-wheel 8 by the motion communicated to it by the revolution ofthe compound wheel 2.

The bevel-wheel 3 is fitted to the shaft l1, Fig. 2, which shaft extends along `the, outside of the framing, securediii any suitable manner, and terminating in a crank at the front of the loom.

Attached to the jaws et of the cam-block collar f is a stepping-bar, l2, Fig. 4, which depresses the treadles n n n it successively as it is carried along by the spiral groove iii the cam-block e at each revolution. This bar is secured to thejaws by a pin, and the jaws are provided with holes to allow the lengthening or shortening of the motion of the steppingbar.

The compound wheel 2 is secured upon its axis in such a manner as that it can be so changed as to produce the action of the pawl 9 at any point of the vibration of the batten o upon the ratchet-wheel 8, the wheel 2 being for this purpose adjustable upon its axis and fastened at any point desired by the operation of the screw holding it upon its center.

The warp-roller b is provided with heads at each end, in which recesses are formed to receive an elastic belt.,lthe pressure of which is regulated by the set-screw Fig; 1.

In Fig. 5, g represents the picker-block containing at the bottom the picker-spring t, attached to the ends of which are the short levers s s pivoted upon the blocks h h', the upper ends being each constructed with a recess.

The picker-staffs q q are pivoted near the upper portion of the picker-block g, and their lower ends so formed as to fit loosely into the recesses of the short levers s s. By this arrangement an accelerated action is given .to

the picker-staff, and-greater certainty given to the throw of the shuttle by the action of the spring t.

Fig. 3 represents the shuttle-box with the shuttle in position.

The cloth-beaml r is provided with a ratchet- Wheel, 8, operated by the spring-pawl 9 upon the bar 7, and held in position by the pawl l0 attached to the framing of the loom.

The pitmen l Z impart the reciprocating motion to the batten, and at the saine time operate the devices for throwing the shuttle. 

